JPH01163045A - Pultrusion product made of carbon fiber reinforced composite resin and its production - Google Patents
Pultrusion product made of carbon fiber reinforced composite resin and its productionInfo
- Publication number
- JPH01163045A JPH01163045A JP62323189A JP32318987A JPH01163045A JP H01163045 A JPH01163045 A JP H01163045A JP 62323189 A JP62323189 A JP 62323189A JP 32318987 A JP32318987 A JP 32318987A JP H01163045 A JPH01163045 A JP H01163045A
- Authority
- JP
- Japan
- Prior art keywords
- carbon fiber
- fiber reinforced
- resin layer
- reinforced resin
- fibers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 216
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 216
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 185
- 239000000805 composite resin Substances 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 title claims description 25
- 239000011347 resin Substances 0.000 claims abstract description 207
- 229920005989 resin Polymers 0.000 claims abstract description 207
- 239000000835 fiber Substances 0.000 claims abstract description 58
- 238000004804 winding Methods 0.000 claims abstract description 12
- 239000003365 glass fiber Substances 0.000 claims abstract description 9
- 229920006231 aramid fiber Polymers 0.000 claims abstract description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 38
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 37
- 239000003733 fiber-reinforced composite Substances 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 10
- 238000007493 shaping process Methods 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims description 3
- 239000012783 reinforcing fiber Substances 0.000 abstract description 7
- 239000010410 layer Substances 0.000 description 134
- 239000011159 matrix material Substances 0.000 description 9
- 238000005470 impregnation Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229920002302 Nylon 6,6 Polymers 0.000 description 2
- 229930182556 Polyacetal Natural products 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 235000010216 calcium carbonate Nutrition 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 229920006324 polyoxymethylene Polymers 0.000 description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 229920006305 unsaturated polyester Polymers 0.000 description 2
- 229920001567 vinyl ester resin Polymers 0.000 description 2
- 241000238366 Cephalopoda Species 0.000 description 1
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 description 1
- 239000004727 Noryl Substances 0.000 description 1
- 229920001207 Noryl Polymers 0.000 description 1
- 229920000299 Nylon 12 Polymers 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 239000012792 core layer Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 229920006380 polyphenylene oxide Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Moulding By Coating Moulds (AREA)
Abstract
Description
【発明の詳細な説明】
の１
本発明は、炭素繊維束に樹脂を含浸させ、金型（グイ）
の中に引込んで所定形状に賦形固化することにより製造
される円形断面又は非円形断面を有した炭素繊維強化複
合樹脂引抜成形品及びその製造法に関するものである。[Detailed Description of the Invention] No. 1 The present invention involves impregnating carbon fiber bundles with resin and molding them into molds.
The present invention relates to a carbon fiber-reinforced composite resin pultrusion molded product having a circular or non-circular cross section that is manufactured by drawing the product into a mold and solidifying it into a predetermined shape, and a method for manufacturing the same.
本発明に係る炭素繊維強化複合樹脂引抜成形品は円形又
は非円形の様々な断面形状を有した細長のパイプ又は形
材として具体化され、軸方向の引張力、圧縮力に耐え得
るのみならず横方向のねじり強度も大とされる軽量且つ
高強度の、更には腐食しない材料として好適に使用し得
るものであり、例えば土木、建築分野における柱、梁等
の骨組構造材或いは流体輸送用配管等として、又は、航
空、宇宙、自動車、船舶、鉄道、その他種々の分野にお
けるフレーム、機械部品として幅広く使用することがで
きる。The carbon fiber-reinforced composite resin pultruded product according to the present invention can be embodied as an elongated pipe or section having various circular or non-circular cross-sectional shapes, and can not only withstand tensile force and compressive force in the axial direction. It can be suitably used as a lightweight, high-strength, and non-corrosive material that has high torsional strength in the lateral direction.For example, it can be used for frame structures such as columns and beams in the civil engineering and architectural fields, or for fluid transportation piping. It can be widely used as frames and mechanical parts in aviation, space, automobiles, ships, railways, and various other fields.
の び エ
従来、上述した種々の分野で軽量で且つ高強度の円形又
は非円形断面を有したパイプ又は形材が要求されており
、斯る材料として特に非円形断面形状をしたパイプ又は
形材の炭素繊維強化複合樹脂引抜成形品が注目を浴びて
いる。In the past, there has been a demand for lightweight, high-strength pipes or shapes with circular or non-circular cross-sections in the various fields mentioned above. Carbon fiber reinforced composite resin pultrusion molded products are attracting attention.
従来、該炭素繊維強化複合樹脂引抜成形品は、樹脂含浸
された炭素繊維を軸方向に整列させて金型にて引抜き、
賦形固化させることにより成形された。このような炭素
繊維強化複合樹脂引抜成形品は軸方向の引張り及び圧縮
強度は得られるが、横方向の強度、例えばねじり及び曲
げ強度等の点で問題があった。この問題を解決するべく
マンドレル上に樹脂含浸炭素繊維を螺旋状に巻付け、そ
の後金型にて所望形状に賦形固化し所望の成形品を得る
。所謂オーバーワインディング法が提案された。該オー
バーワインディング法にて製造された成形品は、横方向
強度は増大するものの軸方向強度の点で問題がある。Conventionally, the carbon fiber-reinforced composite resin pultrusion molded product is produced by aligning resin-impregnated carbon fibers in the axial direction and drawing them in a mold.
It was molded by shaping and solidifying. Although such a carbon fiber reinforced composite resin pultrusion molded product can obtain tensile and compressive strength in the axial direction, there are problems in terms of strength in the transverse direction, such as torsional and bending strength. To solve this problem, resin-impregnated carbon fibers are spirally wound around a mandrel, and then shaped and solidified into a desired shape using a mold to obtain a desired molded product. A so-called overwinding method was proposed. Although molded products manufactured by the overwinding method have increased strength in the transverse direction, they have problems in terms of strength in the axial direction.
本発明者等は、上記問題点を解決するべく多くの研究、
実験を行なった結果、強化繊維を軸方向に整列して形成
される軸方向ｍ！ｉ層と１強化繊維を軸線に対し螺旋状
に巻付けることにより形成される螺旋方向繊維層とを具
備することにより、従来それぞれ単独で得られていた以
上の軸方向及び横方向の強度が得られることを見出し、
先に、強化繊維を軸方向に整列して形成される軸方向繊
維層と、強化繊維を軸線に対し螺旋状に巻付けることに
より形成される螺旋方向繊維層とを有した繊維強化複合
樹脂引抜成形品を提案した。In order to solve the above problems, the present inventors have conducted many studies,
As a result of the experiment, the axial direction m which is formed by aligning the reinforcing fibers in the axial direction! By including the i-layer and the helical fiber layer formed by spirally winding the reinforcing fibers around the axis, strength in the axial direction and the transverse direction can be obtained that is higher than that obtained conventionally by each alone. I discovered that
First, a fiber-reinforced composite resin is drawn, which has an axial fiber layer formed by aligning reinforcing fibers in the axial direction and a helical fiber layer formed by winding reinforcing fibers in a spiral around the axis. We proposed a molded product.
斯る繊維強化複合樹脂引抜成形品は所期の目的を達成し
、極めて大きな軸方向及び横方向強度を発揮するもので
あった。The fiber-reinforced composite resin pultruded product achieved the intended purpose and exhibited extremely high axial and transverse strength.
しかしながら、更に本発明者等の研究実験によると、特
に強化繊維として炭素繊維を使用してこのような繊維強
化複合樹脂引抜成形品をオーバワインダにより製造する
場合に、特に軸方向炭素繊維強化樹脂層及び螺旋方向炭
素繊維強化樹脂層から成る未硬化炭素繊維強化樹脂層積
層体を金型（グイ）へと引込んで所定の寸法形状に賦形
する工程において、軸方向炭素繊維強化樹脂層と螺旋方
向炭素繊維強化樹脂層とが相対的に運動し、螺旋方向炭
素繊維が等間隔で挿入されないので所望の厚さ及び形状
の炭素繊維強化樹脂層積層体を形成するのが困難である
ことが分かった。However, according to research experiments conducted by the present inventors, especially when carbon fiber is used as the reinforcing fiber to produce such a fiber-reinforced composite resin pultruded product using an overwinder, the axial carbon fiber-reinforced resin layer In the step of drawing an uncured carbon fiber reinforced resin layer laminate consisting of a helical carbon fiber reinforced resin layer into a mold and shaping it into a predetermined size and shape, the axial carbon fiber reinforced resin layer and the helical direction It was found that it was difficult to form a carbon fiber reinforced resin layer laminate with a desired thickness and shape because the carbon fiber reinforced resin layer moved relative to the carbon fiber reinforced resin layer and the spiral carbon fibers were not inserted at equal intervals. .
本発明者等は、この問題を解決するべく、特に炭素繊維
強化複合樹脂引抜成形品の構造及び製造法を研究し、実
験した結果、軸方向炭素繊維強化樹脂層或いは螺旋方向
炭素繊維強化樹脂層のいずれか又は両方に炭素繊維とは
異なる異種の繊維、特に該異種の繊維が毛羽立った状態
のもの（単繊維が乱配向した毛糸状の繊維束をいう、）
を所定の割合にて含ませることにより上記問題が解決さ
れ、又、引抜成形品の軸方向及び横方向強度も実質的に
変らないことを見出した。これは、炭素繊維層に異種の
繊維を混入することにより線層における摩擦抵抗が増大
し、線層の上又は下に重ね合せられる層との間の相対運
動が阻止され、未硬化炭素繊維強化樹脂層積層体を金型
へと引込んだ際の積層体の乱れが防止されるからである
と考えられる。In order to solve this problem, the present inventors particularly studied the structure and manufacturing method of carbon fiber-reinforced composite resin pultrusion products, and as a result of experiments, the inventors found that an axial carbon fiber-reinforced resin layer or a helical carbon fiber-reinforced resin layer Fibers of different types different from carbon fibers in either or both of them, especially those in a fluffy state (referring to yarn-like fiber bundles in which single fibers are randomly oriented)
It has been found that the above-mentioned problem can be solved by including a predetermined proportion of the pultruded product, and the axial and transverse strengths of the pultruded product are not substantially changed. This is due to the fact that by mixing different types of fibers into the carbon fiber layer, the frictional resistance in the wire layer increases, and the relative movement between layers stacked above or below the wire layer is prevented, and the uncured carbon fiber reinforcement This is thought to be because the resin layer laminate is prevented from being disturbed when the resin layer laminate is drawn into the mold.
本発明は斯る新規な知見に基づきなされたものである。The present invention has been made based on this new knowledge.
光」ＬΩ」Ｌ狼−
本発明の目的は、軸方向及び横方向の強度が従来の成形
品に比較し飛躍的に向上した円形断面又は非円形断面形
状を有した炭素繊維強化複合樹脂引抜成形品を提供する
ことである。The object of the present invention is to produce a carbon fiber reinforced composite resin pultrusion molded product having a circular or non-circular cross-sectional shape, which has dramatically improved axial and lateral strength compared to conventional molded products. It is to provide products.
本発明の他の目的は、円形断面形状のみならず、特に非
円形断面形状を有した炭素繊維強化複合樹脂引抜成形品
を極めて簡単に且つ連続的にオーバーワインディング法
を利用して製造し得る製造法を提供することである。Another object of the present invention is to manufacture carbon fiber-reinforced composite resin pultruded products having not only a circular cross-sectional shape but also a non-circular cross-sectional shape extremely easily and continuously using an overwinding method. It is to provide law.
。 る。. .
上記諸口的は本発明に係る炭素繊維強化複合樹脂引抜成
形品及びその製造法によって達成される。要約すれば本
発明は、炭素繊維を軸方向に整列して形成される軸方向
炭素繊維強化樹脂層と、炭素繊維を軸線に対し螺旋状に
巻付けることにより形成される螺旋方向炭素繊維強化樹
脂層とを有した炭素繊維強化複合樹脂引抜成形品であっ
て、前記軸方向炭素繊維樹脂層或いは螺旋方向炭素繊維
強化樹脂層のいずれか又は両方に炭素繊維とは異種の繊
維を１〜２０％含むことを特徴とする炭素ｍ！強化複合
樹脂引抜成形品である。軸方向炭素繊維強化樹脂層と螺
旋方向炭素繊維強化樹脂層とは互い違いに複数層形成さ
れ、又、好ましくは、異種の繊維は毛羽立った繊維とさ
れ、ガラス繊維束又はアラミド繊維束にて形成される。The above objectives are achieved by the carbon fiber-reinforced composite resin pultrusion molded product and the manufacturing method thereof according to the present invention. In summary, the present invention provides an axial carbon fiber reinforced resin layer formed by aligning carbon fibers in the axial direction, and a spiral carbon fiber reinforced resin layer formed by spirally winding carbon fibers around the axis. A carbon fiber-reinforced composite resin pultrusion molded product having a carbon fiber reinforced composite resin layer, wherein either or both of the axial carbon fiber resin layer or the helical carbon fiber reinforced resin layer contains 1 to 20% of fibers of a different type than carbon fibers. Carbon m! This is a reinforced composite resin pultruded product. The axial carbon fiber reinforced resin layer and the helical carbon fiber reinforced resin layer are alternately formed in multiple layers, and preferably the different types of fibers are fluffy fibers and are formed of glass fiber bundles or aramid fiber bundles. Ru.
本発明の円形断面形状を有した炭素繊維強化複合樹脂引
抜成形品は、（ａ）円形断面を有した細長のマンドレル
を用意する工程： （ｂ）前記マンドレルの上に樹脂含
浸炭素繊維を軸方向に配置するか又は螺旋方向に巻付け
て、所定の肉厚を有した第１の炭素繊維強化樹脂層を形
成する工程；（ｅ）前記第１の炭素繊維強化樹脂層を固
化するに先立って該炭素ａ＃１強化樹脂層の上に樹脂含
浸炭素繊維を前記第１の炭素繊維強化樹脂層とは異なる
方向に配列することにより第２の炭素繊維強化樹脂層を
形成する工程； （ｄ）必要に応じて。The carbon fiber-reinforced composite resin pultrusion molded product having a circular cross-section of the present invention can be obtained by: (a) preparing an elongated mandrel having a circular cross-section; (b) placing resin-impregnated carbon fibers on the mandrel in the axial direction; (e) prior to solidifying the first carbon fiber reinforced resin layer; (e) prior to solidifying the first carbon fiber reinforced resin layer; forming a second carbon fiber reinforced resin layer on the carbon a#1 reinforced resin layer by arranging resin-impregnated carbon fibers in a direction different from that of the first carbon fiber reinforced resin layer; (d) as needed.
前記（ｂ）、（ｃ）工程を所望回数繰り返し行ない、軸
方向炭素繊維強化樹脂層及び螺旋方向炭素繊維強化樹脂
層から成る未硬化炭素繊維強化樹脂層積層体を形成する
工程； （ｅ）前記軸方向炭素繊維強化樹脂層成いは螺
旋方向炭素繊維強化樹脂層のいずれか又は両方に炭素繊
維とは異種の繊維が１〜２０％含まれていること； （
ｆ）前記積層体を金型へと引込んで所定の寸法形状に賦
形する工程； （ｇ）次いで、前記炭素繊維強化樹脂層
積層体を固化する工程；を有することを特徴とする製造
法にて製造され、又、本発明の非円形断面形状を有した
炭素繊維強化樹脂引抜成形品は、（ａ）所定長さの円形
断面部分と、該円形断面部・分に連接し、所定の断面形
状へと漸次連続的に変化する非円形断面部分とを有した
細長のマンドレルを用意する工程； （ｂ）前記マンド
レルの円形断面部分の上に樹脂含浸炭素繊維を軸方向に
配置するか又は螺旋方向に巻付けて、所定の肉厚を有し
た第１の炭素繊維強化樹脂層を形成する工程；（ｃ）前
記第１の炭素繊維強化樹脂層を固化するに先立って該炭
素繊維強化樹脂層の上に樹脂含浸炭素繊維を前記第１の
炭素繊維強化樹脂層とは異なる方向に配列することによ
り第２の炭素繊維強化樹脂層を形成する工程； （ｄ）
必要に応じて、前記（ｂ）、（ｃ）工程を所望回数繰り
返し行なった後、前記軸方向炭素繊維強化樹脂層及び螺
旋方向炭素繊維強化樹脂層から成る未硬化炭素繊維強化
樹脂層積層体を形成する工程： （ｅ）前記軸方向炭素
繊維強化樹脂層成いは螺旋方向炭素繊維強化樹脂層のい
ずれか又は両方に異種の繊維が１〜２０％含まれている
こと； （ｆ）前記積層体を前記マンドレルの非円形断
面部分に導き、次いで金型へと引込んで所定形状に賦形
する工程；（ｇ）次いで、前記炭素繊維強化樹脂層積層
体を固化する工程；を有する製造法にて好適に製造され
る。(e) repeating the steps (b) and (c) a desired number of times to form an uncured carbon fiber reinforced resin layer laminate consisting of an axial carbon fiber reinforced resin layer and a helical carbon fiber reinforced resin layer; Either or both of the axial carbon fiber reinforced resin layer and the helical carbon fiber reinforced resin layer contain 1 to 20% of fibers different from carbon fiber; (
f) a step of drawing the laminate into a mold and shaping it into a predetermined size and shape; (g) a step of then solidifying the carbon fiber reinforced resin layer laminate; The carbon fiber-reinforced resin pultrusion molded product having a non-circular cross-sectional shape of the present invention is manufactured by: (a) having a circular cross-sectional portion of a predetermined length; (b) axially or spirally disposing resin-impregnated carbon fibers on the circular cross-section of the mandrel; (c) prior to solidifying the first carbon fiber reinforced resin layer, (d) forming a second carbon fiber reinforced resin layer by arranging resin-impregnated carbon fibers in a direction different from that of the first carbon fiber reinforced resin layer;
If necessary, after repeating the steps (b) and (c) a desired number of times, an uncured carbon fiber reinforced resin layer laminate consisting of the axial carbon fiber reinforced resin layer and the helical carbon fiber reinforced resin layer is formed. Step of forming: (e) Either or both of the axial carbon fiber reinforced resin layer and the helical carbon fiber reinforced resin layer contain 1 to 20% of different types of fibers; (f) The lamination (g) solidifying the carbon fiber reinforced resin layer laminate; (g) solidifying the carbon fiber reinforced resin layer laminate; It is suitably manufactured.
実ｊＥ例
次に１本発明に係る炭素繊維強化複合樹脂引抜成形品に
ついて更に詳しく説明する。Practical Example Next, a carbon fiber reinforced composite resin pultrusion molded product according to the present invention will be explained in more detail.
第１図〜第７図には本発明に従った非円形断面形状及び
円形断面形状を有した炭素繊維強化複合樹脂引抜成形品
が例示される０本発明によれば、例えば第１図及び第２
図に図示されるように矩形断面の、更には他の任意の断
面をした中空のパイプ状炭素繊維強化複合樹脂引抜成形
品が提供されるし、又第３図〜第５図に図示するような
Ｌ、Ｈ，Ｉ型、その他任意の断面形状をした形材である
炭素繊維強化複合樹脂引抜成形品が、更には第６図及び
第７図に図示するような円形断面形状をした中空のパイ
プ状炭素繊維強化複合樹脂引抜成形品が提供される。1 to 7 illustrate carbon fiber-reinforced composite resin pultruded products having non-circular cross-sectional shapes and circular cross-sectional shapes according to the present invention. According to the present invention, for example, FIG. 2
A hollow pipe-shaped carbon fiber reinforced composite resin pultruded product having a rectangular cross section as shown in the figure, or any other arbitrary cross section is provided, and as shown in FIGS. Carbon fiber-reinforced composite resin pultrusion molded products, which are L, H, I-shaped, and other arbitrary cross-sectional shapes, can also be hollow, circular cross-sectional shapes as shown in FIGS. 6 and 7. A pipe-shaped carbon fiber reinforced composite resin pultruded product is provided.
第１図を参照し、本発明に係る炭素繊維強化複合樹脂引
抜成形品について説明すると１本発明にて製造される炭
素繊維強化複合樹脂引抜成形品ｌは、強化繊維として使
用される炭素繊維を軸方向に整列して形成される軸方向
炭素繊維強化樹脂層２と１強化繊維を軸線に対し所定角
度にて螺旋状に巻付けることにより形成される螺旋方向
炭素繊維強化樹脂層４とを具備する。成形品の最内層は
螺旋方向炭素繊維強化樹脂層４とすることも可能である
が、好ましくは図示されるように、軸方向炭素繊維強化
樹脂層２とされる。又、軸方向炭素Ｍ＆雄雄花化樹脂層
と螺旋方向炭素ｍ雄花化樹脂層４とは、第２図に図示さ
れるように、互い違いに複数層形成することも可能であ
り、この場合に最外層は図示されるように軸方向炭素繊
維強化樹脂層２とすることもでき、又螺旋方向炭素繊維
強化樹脂層４とすることもできるが、成形品の最内層は
、好ましくは上述のように、軸方向炭素繊維強化樹脂層
２とされる。この理由は、成形品の最内層を軸方向炭素
繊維強化樹脂層２とすることにより成形品の連続製造に
際し、円滑な運転が可能となるからである。The carbon fiber-reinforced composite resin pultrusion molded product according to the present invention will be explained with reference to FIG. It is equipped with an axial carbon fiber reinforced resin layer 2 formed in alignment in the axial direction and a spiral carbon fiber reinforced resin layer 4 formed by spirally winding reinforcing fibers 1 at a predetermined angle with respect to the axis. do. Although the innermost layer of the molded product may be a helical carbon fiber reinforced resin layer 4, it is preferably an axial carbon fiber reinforced resin layer 2 as shown. In addition, the axial carbon M & staminate resin layer 4 and the helical carbon M staminate resin layer 4 can be alternately formed in multiple layers as shown in FIG. 2, and in this case, the maximum Although the outer layer can be an axial carbon fiber reinforced resin layer 2 as shown or a helical carbon fiber reinforced resin layer 4, the innermost layer of the molded article is preferably , an axial carbon fiber reinforced resin layer 2. The reason for this is that by forming the axial carbon fiber reinforced resin layer 2 as the innermost layer of the molded product, smooth operation becomes possible during continuous production of the molded product.
螺旋方向炭素繊維強化樹脂７ｉ１４における軸線方向に
対する巻付は角度、及び各炭素繊維強化樹脂ＷＪ２．４
における繊維の密度１層厚さ等は任意に選択し得るが、
−例を挙げれば、巻付は角度は、４５°〜８０’とされ
、炭素繊維強化樹脂層２゜４における繊維含有量は□体
積％で５０〜６０％とされるのが好適である。The winding angle with respect to the axial direction in the helical direction carbon fiber reinforced resin 7i14, and each carbon fiber reinforced resin WJ2.4
The fiber density, single layer thickness, etc. can be selected arbitrarily, but
- For example, the winding angle is preferably 45° to 80', and the fiber content in the carbon fiber reinforced resin layer 2°4 is preferably 50 to 60% by volume.
又、炭素繊維に含浸されるマトリクス樹脂はエポキシ、
不飽和ポリエステル、ビニルエステル等の熱硬化性樹脂
、及び手イロン６、ナイロン６６、ポリカーボネート、
ポリアセタール、ポリフェニレンスルファイド、ポリプ
ロピレン等の熱可塑性樹脂とされる。In addition, the matrix resin impregnated into carbon fibers is epoxy,
Thermosetting resins such as unsaturated polyester and vinyl ester, iron 6, nylon 66, polycarbonate,
Thermoplastic resins such as polyacetal, polyphenylene sulfide, and polypropylene.
本発明に従えば、軸方向炭素繊維強化樹脂層或いは螺旋
方向炭素繊維強化樹脂層のいずれか又は両方に、炭素繊
維とは異なる異種の繊維、例えばガラス繊維束、アラミ
ド繊維束等が、核層に含まれる全繊維に対し１〜２０％
、好ましくは４〜１０％含まれる。異種の繊維の含有量
が１％より小さいと効果が顕著に現われず、２０％を越
えると゛強度の点で問題が生じてくる。According to the present invention, fibers of a different type than carbon fibers, such as glass fiber bundles, aramid fiber bundles, etc., are included in either or both of the axial carbon fiber reinforced resin layer and the helical carbon fiber reinforced resin layer as a core layer. 1-20% of the total fiber contained in
, preferably 4 to 10%. If the content of different types of fibers is less than 1%, the effect will not be noticeable, and if it exceeds 20%, problems will arise in terms of strength.
又、本発明者等の研究実験の結果によると、該異種の繊
維束は、毛糸状繊維束、即ち、単繊維が乱配向した毛糸
状の繊維束であるのが好ましいことが分かった０例えば
、英国Ｐ Ｉ ＬＫ Ｉ ＮＧＴＯＮ社製のガラス繊維
束ｒｓＰＡＮＥＤ ＬＯＶＩＮＧ （スパンロービン
グ）Ｊ （２４００ＴＥＸ）等にて高結果を得ること
ができた。Further, according to the results of research experiments conducted by the present inventors, it has been found that it is preferable that the different types of fiber bundles are woolen fiber bundles, that is, woolen fiber bundles in which single fibers are randomly oriented. Good results were obtained using glass fiber bundles rsPANED LOVING J (2400TEX) manufactured by PILK INGTON, UK.
このような異種の繊維は、軸方向炭素繊維強化樹脂層２
或いは螺旋方向炭素繊維強化樹脂層４のいずれか又は両
方に含ませることもできるが、例えば第２図のように、
軸方向炭素繊維樹脂層２と螺旋方向炭素繊維樹脂層４と
が互い違いに複数層形成され、螺旋方向炭素繊維樹脂層
４を挟持して軸方向炭素繊維樹脂層２が配置された場合
には。Such different types of fibers are used in the axial carbon fiber reinforced resin layer 2.
Alternatively, it can be included in either or both of the helical carbon fiber reinforced resin layers 4, for example as shown in FIG.
In the case where a plurality of axial carbon fiber resin layers 2 and helical carbon fiber resin layers 4 are alternately formed, and the axial carbon fiber resin layers 2 are arranged with the helical carbon fiber resin layers 4 sandwiched therebetween.
軸方向炭素繊維樹脂層２の少なくともいずれか一方に異
種の繊維を含ませることができ、又第１θ図に示される
構成の成形品の場合には、最内層と最外層の繊維樹脂層
２に含ませることができる。At least one of the axial carbon fiber resin layers 2 may contain different types of fibers, and in the case of a molded product having the configuration shown in Fig. 1θ, the innermost and outermost fiber resin layers 2 may contain different types of fibers. can be included.
上記説明では矩形断面の中空管とされる炭素繊維強化複
合樹脂引抜成形品について説明したが、上述のように、
本発明はこれに限定されるものではなく、例えば第３図
〜第５図に図示するようにり、Ｈ，Ｉ形、その他任意の
断面形状をした形材、更には第６図及び第７図に図示す
るような円形断面形状をしたパイプ状成形品も同様に製
造することができる。In the above explanation, a carbon fiber reinforced composite resin pultruded product which is a hollow tube with a rectangular cross section was explained, but as mentioned above,
The present invention is not limited thereto, and may be used, for example, as shown in FIGS. A pipe-shaped molded product having a circular cross-sectional shape as shown in the figure can also be produced in the same manner.
次に、本発明に係る炭素繊維強化複合樹脂引抜成形品の
製造法について説明する。Next, a method for manufacturing a carbon fiber reinforced composite resin pultrusion molded product according to the present invention will be explained.
第８図には上記非円形断面形状を有した炭素繊維強化複
合樹脂引抜成形品ｌを製造するための引抜成形ｆｉｌＯ
の一実施例が示される０本実施例では、特に、第１０図
に図示されるように、最内層より軸方向炭素繊維強化樹
脂層２、螺旋方向炭素ａ雄花化樹脂層４、軸方向炭素繊
維強化樹脂層２、螺旋方向炭素繊維強化樹脂層４及び軸
方向炭素繊維強化樹脂層２から成る５層構成の炭素繊維
強化複合樹脂引抜成形品ｌが製造されるものとする。FIG. 8 shows a pultrusion molding process for producing a carbon fiber-reinforced composite resin pultrusion product l having the above-mentioned non-circular cross-sectional shape.
In this embodiment, as illustrated in FIG. A carbon fiber-reinforced composite resin pultrusion molded product 1 having a five-layer structure consisting of a fiber-reinforced resin layer 2, a helical carbon fiber-reinforced resin layer 4, and an axial carbon fiber-reinforced resin layer 2 is manufactured.
本引抜成形機ｌＯによれば、炭素繊維１２が巻付けられ
た多数のクリール１４がクリールスタンド１６ （１６
ａ、１６ｂ）に軸架される０本実施例では、クリールス
タンド１６は３基設けられ。According to this pultrusion molding machine IO, a large number of creels 14 around which carbon fibers 12 are wound are arranged on a creel stand 16 (16
In this embodiment, three creel stands 16 are provided.
第１のクリールスタンド１６ａからの炭素繊維１２ａは
ガイド板１８により樹脂含浸槽２０へと導入され、マト
リクス樹脂が含浸される。余分の樹脂が絞られた樹脂含
浸炭素繊＄＄ １２ ａはガイド板２２によりオーバー
ワイングー２４に供給され、該オーバーワイングー２４
に取付けられたマンドレル２６に対し軸線方向に整列し
て縦添えされる（最内層となる軸方向炭素繊維強化樹脂
層２の形成）、同時に、該オーバーワイングー２４は該
オーバーワイングー２４に搭載された複数個のクリール
２４ａから繰り出される炭素繊維２４ｂが、上記縦添え
された軸方向炭素繊維強化樹脂層２の上に所定の角度、
例えば７０度の巻付は角度にて巻付けられ、螺旋方向炭
素繊維強化樹脂層４が形成される。クリール２４ａから
の炭素繊維にはマトリクス樹脂は含浸されていないが、
マンドレルに巻付けられたとき、下層の軸方向炭素繊維
強化樹脂層及び次の工程にて縦添えされる軸方向炭素繊
維強化樹脂層からの余剰マトリクス樹脂が含浸される。The carbon fibers 12a from the first creel stand 16a are introduced into the resin impregnation tank 20 by the guide plate 18 and impregnated with matrix resin. The resin-impregnated carbon fiber $$ 12a from which excess resin has been squeezed is supplied to the overwine goo 24 by the guide plate 22, and the overwine goo 24
(Formation of axial carbon fiber reinforced resin layer 2 serving as the innermost layer), and at the same time, the overwine goo 24 is mounted on the overwine goo 24. The carbon fibers 24b fed out from the plurality of creels 24a are placed on top of the vertically attached axial carbon fiber reinforced resin layer 2 at a predetermined angle.
For example, the winding is performed at an angle of 70 degrees, and the helical carbon fiber reinforced resin layer 4 is formed. Although the carbon fiber from Creel 24a is not impregnated with matrix resin,
When wound around the mandrel, it is impregnated with excess matrix resin from the lower axial carbon fiber reinforced resin layer and the axial carbon fiber reinforced resin layer that will be applied longitudinally in the next step.
第２及び第３のクリールスタンド１６ｂはクリールスタ
ンド１６ａを挟んで対称に配置され、同様に作動するた
めに、第８図では図面上手前側のクリールスタンド１６
ｂのみを詳細に図示し説明し、他方のクリールスタンド
１６ｂの説明は省略する。クリールスタンド１６ｂから
の炭素繊維１２ｂの中の一部の繊維１２ｃはガイド板２
８により樹脂含浸槽３０へと導入され、マトリクス樹脂
が含浸される。余分の樹脂が絞られた樹脂含浸炭素繊維
１２ ｃはガイド板３２．３４によりオーバーワイング
ー３６に供給される。該樹脂含浸炭素繊維１２ｃは、オ
ーバーワイングー２４．３６の中心部を貫通する。今や
軸線方向及び螺旋方向の２層の強化炭素繊維強化樹脂層
が形成されているマンドレル２６に対し軸方向へと供給
され、螺旋状の炭素繊維２４ｂ上に縦添えされる（２番
目の軸方向炭素繊維強化樹脂層２の形成）、同時に、該
オーバーワイングー３６は該オーバーワイングー３６に
搭載された複数個のクリール３６ａから繰り出される炭
素繊維３６ｂが、上記縦添えされた軸方向炭素繊維強化
樹脂層２の上に所定の角度、例えば７０度の巻付は角度
にて巻付けられ、螺旋方向炭素繊維強化樹脂層４が形成
される。該オーバーワイングー３６は前記オーバーワイ
ングー２４とは逆方向に回転され、従ってオーバーワイ
ングー３６にて形成される螺旋方向炭素繊維強化樹脂層
４の巻付方向と、オーバーワイングー２４にて形成され
た螺旋方向炭素繊維強化樹脂層４の巻付方向とは逆向き
となる。クリール３６ａからの炭素繊維にはマトリクス
樹脂は含浸されていないが、マンドレルに巻付けられた
とき、下層の軸方向炭素繊維強化樹脂層及び次の工程に
て縦添えされる軸方向炭素繊維強化樹脂層からの余剰マ
トリクス樹脂が含浸される。The second and third creel stands 16b are arranged symmetrically with the creel stand 16a in between, and in order to operate in the same manner, in FIG.
Only the creel stand 16b will be illustrated and explained in detail, and the explanation of the other creel stand 16b will be omitted. Some of the fibers 12c in the carbon fibers 12b from the creel stand 16b are attached to the guide plate 2.
8 into the resin impregnation tank 30 and impregnated with matrix resin. The resin-impregnated carbon fiber 12c from which excess resin has been squeezed is supplied to the overwinter 36 by guide plates 32, 34. The resin-impregnated carbon fiber 12c passes through the center of the overwinter groove 24.36. It is fed in the axial direction to the mandrel 26 on which two reinforced carbon fiber reinforced resin layers, one in the axial direction and the other in the helical direction, are applied vertically on the helical carbon fiber 24b (the second axial direction Formation of the carbon fiber reinforced resin layer 2) At the same time, the overwine goo 36 has carbon fibers 36b fed out from a plurality of creels 36a mounted on the overwine goo 36, and the carbon fibers 36b fed from the longitudinally attached axial carbon fiber reinforcement. The resin layer 2 is wound at a predetermined angle, for example, 70 degrees, to form a helical carbon fiber reinforced resin layer 4. The overwine goo 36 is rotated in the opposite direction to the overwine goo 24, so that the winding direction of the spiral carbon fiber reinforced resin layer 4 formed on the overwine goo 36 and the overwine goo 24 are different from each other. This direction is opposite to the direction in which the helical carbon fiber reinforced resin layer 4 is wound. The carbon fibers from the creel 36a are not impregnated with matrix resin, but when wound around the mandrel, the lower axial carbon fiber reinforced resin layer and the axial carbon fiber reinforced resin that will be longitudinally applied in the next step Excess matrix resin from the layer is impregnated.
前記螺旋状に巻付けられた炭素＠＠３６ｂの上には、第
２のクリールスタンド１６ｂからの炭素縁１１１２ｂの
残余の繊維１２ｄであって、ガイド板４０．４２により
樹脂含浸槽４４へと導入され、マトリクス樹脂が含浸さ
れ、次いで余分の樹脂が絞られ、ガイド板４６．４８に
より案内供給された樹脂含浸炭素繊維１２ｄが軸線方向
に整列して配置され、最外層の軸方向炭素繊維強化樹脂
層２が形成される。On top of the helically wound carbon @36b are the remaining fibers 12d of the carbon edge 1112b from the second creel stand 16b, which are introduced into the resin impregnation bath 44 by means of guide plates 40.42. The resin-impregnated carbon fibers 12d guided and supplied by the guide plates 46 and 48 are arranged in alignment in the axial direction, and the outermost layer of axial carbon fiber reinforced resin is Layer 2 is formed.
このようにしてマンドレル２６上には軸方向炭素繊維強
化樹脂層２及び螺旋方向炭素繊維強化樹脂層４が所定層
だけ積層された炭素繊維強化樹脂層積層体５０が形成さ
れる。In this way, a carbon fiber reinforced resin layer laminate 50 is formed on the mandrel 26, in which a predetermined number of the axial carbon fiber reinforced resin layer 2 and the helical carbon fiber reinforced resin layer 4 are laminated.
又、樹脂含浸槽２０．３０．４４には樹脂液が収容され
ており、該樹脂液は、エポキシ、不飽和ポリエステル、
ウレタンアクリレート、ビニルエステル、フェノール、
ポリウレタン等の熱硬化性樹脂、及びナイロン６、ナイ
ロン６６、ナイロンｌ２、ＰＢＴ、ＰＥＴ、ポリカーボ
ネート、ポリアセタール、ポリフェニレンスルファイド
、ポリエーテルエーテルケトン、ポリエーテルスルファ
イド、ポリフェニレンオキシド、ノリル、ポリプロピレ
ン、ポリ塩化ビニール等の熱可塑性樹脂から選択された
任意のマトリクス樹脂と、所望に応じ、ＣａＣＯ３、？
イカ、Ａ１（ＯＨ）３ 、 タルク等の充填剤と、更に
は耐熱性、耐候性を改良するための添加剤及び着色剤等
にて調製される。Further, the resin impregnation tank 20, 30, 44 contains a resin liquid, and the resin liquid contains epoxy, unsaturated polyester,
Urethane acrylate, vinyl ester, phenol,
Thermosetting resins such as polyurethane, nylon 6, nylon 66, nylon 12, PBT, PET, polycarbonate, polyacetal, polyphenylene sulfide, polyether ether ketone, polyether sulfide, polyphenylene oxide, noryl, polypropylene, polyvinyl chloride Any matrix resin selected from thermoplastic resins such as CaCO3, ?
It is prepared with fillers such as squid, A1(OH)3, and talc, as well as additives and colorants to improve heat resistance and weather resistance.
本発明に従えば、軸方向炭素繊維強化樹脂層を形成する
炭素繊！＊１２ａ、１２ｂ （１２ｃ、１２ｄ）の全て
、又は任意の繊維に、好ましくは炭素繊維１２ｃ、１２
ｄには、上に定義したような形態の異種の繊維、より好
ましくは毛糸状のガラス繊維束（スパンロービング）、
又はアラミド繊維束が混入される。According to the present invention, carbon fibers forming the axial carbon fiber reinforced resin layer! *For all or any fibers of 12a, 12b (12c, 12d), preferably carbon fibers 12c, 12
d, heterogeneous fibers in the form as defined above, more preferably yarn-like glass fiber bundles (spun roving);
Or aramid fiber bundles are mixed.
上述のようにしてマンドレル２６上に内側より樹脂含浸
炭素繊維から成る軸方向炭素繊維強化樹脂層２．螺旋方
向炭素繊維強化樹脂層４．軸方向炭素繊維強化樹脂層２
、螺旋方向炭素繊維強化樹脂層４及び軸方向炭素繊維強
化樹脂Ｎ２の５層から構成される炭素繊維強化樹脂層積
層体５０が形成される。As described above, the axial carbon fiber reinforced resin layer 2 made of resin-impregnated carbon fiber is placed on the mandrel 26 from the inside. Helical carbon fiber reinforced resin layer 4. Axial carbon fiber reinforced resin layer 2
A carbon fiber reinforced resin layer laminate 50 is formed, which is composed of five layers: a helical carbon fiber reinforced resin layer 4 and an axial carbon fiber reinforced resin layer N2.
本発明において、本実施例のように、矩形断面形状を有
した中空管状の繊維強化複合樹脂引抜成形品１を製造す
る場合に使用されるマンドレル２６は、第９図に図示さ
れるように、断面形状が円形をした部分２６ａと、断面
が矩形とされる非円形部分２８ｂとを有し１円形部分２
６ａから非円形部分２６ｂへとは漸次変形するように形
成される。このとき１１円形部分２６ａの周長と、非円
形部分２６ｂの周長とは同じとされる。マンドレル２６
はその大半が、つまりオーバーワインダー２４．３６．
更には金型５２の直前に至るまではその断面形状は円形
とされ、軸方向炭素繊維強化樹脂層２及び螺旋方向炭素
繊維強化樹脂層４から成る繊維強化樹脂層積層体５０は
該円形断面形状をしたマンドレルの円形部分２６ａ上に
形成される。In the present invention, the mandrel 26 used when manufacturing the hollow tubular fiber-reinforced composite resin pultruded product 1 having a rectangular cross-sectional shape as in this embodiment is as shown in FIG. 1 circular portion 2 which has a portion 26a having a circular cross section and a non-circular portion 28b having a rectangular cross section.
The non-circular portion 26b is gradually deformed from the non-circular portion 6a. At this time, the circumferential length of the No. 11 circular portion 26a and the circumferential length of the non-circular portion 26b are the same. mandrel 26
Most of them are overwinders 24.36.
Furthermore, the cross-sectional shape is circular until just before the mold 52, and the fiber-reinforced resin layer laminate 50 consisting of the axial carbon fiber-reinforced resin layer 2 and the helical carbon fiber-reinforced resin layer 4 has this circular cross-sectional shape. is formed on the circular portion 26a of the mandrel.
該円形断面マンドレル２６ａ上に形成された炭素繊維強
化樹脂層５０は次いで、マンドレル２６の非円形部分、
本実施例では矩形状部分２６ｂへと送給され、引続き、
矩形断面形状を有した金型５２内へと引入れられる。The carbon fiber reinforced resin layer 50 formed on the circular cross-section mandrel 26a is then formed on the non-circular portion of the mandrel 26,
In this embodiment, it is fed to the rectangular portion 26b, and then
It is drawn into a mold 52 having a rectangular cross-sectional shape.
このとき、本実施例によれば、各炭素繊維強化樹脂層５
０は、所定の軸方向炭素繊維強化樹脂層２に異種の繊維
が混入されているために、該繊維が螺旋方向炭素繊維強
化繊維層４に食込み、従来見受けられたように、炭素繊
維強化樹脂Ｗ！５０を金型５２内に引入れる際に螺旋方
向炭素繊維強化樹脂層が乱れ、所望の形状への賦形を困
難とし、更に成形されたとしても繊維の破損、配向の乱
れが生じ、物性が低下するといっ−た事態が回避される
。当然に、異種の繊維は軸方向炭素繊維強化樹脂Ｍりに
代えて、又は該樹脂層２と共に螺旋方向炭素繊維強化樹
脂層４に混入することも可能である。At this time, according to this embodiment, each carbon fiber reinforced resin layer 5
No. 0 means that different types of fibers are mixed in the predetermined axial carbon fiber reinforced resin layer 2, so the fibers bite into the helical carbon fiber reinforced fiber layer 4, and as seen in the past, the carbon fiber reinforced resin W! 50 into the mold 52, the helical carbon fiber reinforced resin layer is disturbed, making it difficult to shape it into the desired shape, and even if molded, the fibers are damaged and their orientation is disturbed, resulting in poor physical properties. This avoids a situation where the power level decreases. Naturally, different types of fibers can be mixed into the helical carbon fiber reinforced resin layer 4 instead of the axial carbon fiber reinforced resin M or together with the resin layer 2.
このようにして、極めて好適に金型５２にて所定形状寸
法に賦形された繊維強化樹脂層５０は加熱装置（図示せ
ず）を利用することにより固化（硬化）され、炭素繊維
強化複合樹脂引抜成形品１が形成される。金型５２の下
流側には引抜機５４及びカッター５６が配置され、マン
ドレル２６上から該炭素繊維強化複合樹脂引抜成形品１
を抜取ると共に、該炭素繊維強化複合樹脂引抜成形品ｌ
を所定長さにて切断する。引抜機５４及びカッター５６
の構造及び作用は当業者には周知であるのでこれ以上の
説明は省略する。In this way, the fiber-reinforced resin layer 50, which has been shaped into a predetermined shape and size using the mold 52, is solidified (hardened) by using a heating device (not shown), and the carbon fiber-reinforced composite resin layer 50 is A pultruded article 1 is formed. A drawing machine 54 and a cutter 56 are arranged downstream of the mold 52, and the carbon fiber reinforced composite resin pultrusion molded product 1 is disposed on the mandrel 26.
At the same time, the carbon fiber reinforced composite resin pultrusion molded product l
Cut to a predetermined length. Puller 54 and cutter 56
Since the structure and operation of this are well known to those skilled in the art, further explanation will be omitted.
以上の構成とされる製造方法及び引抜成形機を使用して
、外形が２０Ｘ２０ｍｍ、各炭素繊維強化樹脂層の厚さ
各々０．５ｍｍとされた肉厚２゜５ｍｍの矩形の炭素繊
維強化中空樹脂管を１ ｍ ７分の速度にて製造するこ
とができた。Using the manufacturing method and pultrusion molding machine configured above, a rectangular carbon fiber reinforced hollow resin with a wall thickness of 2°5 mm and an outer diameter of 20 x 20 mm and a thickness of each carbon fiber reinforced resin layer of 0.5 mm is produced. Tubes could be produced at a speed of 1 m 7 min.
炭素繊維として線径７Ｊ１ｍ、強度３４０ｋｇ／ｍｒｎ
’の炭素繊維を使用し、各樹脂含浸槽にはマトリクス樹
脂としてはエポキシ樹脂１００ｗｔ％と、充填剤として
炭酸カルシウムを１０ｗｔ％加えた樹脂液を調製して収
容し、炭素繊維に含浸させた。異種の繊維としては、前
記ガラス繊維束（スパンロービング）が全軸方向炭素繊
維強化層２に５％混入された。As carbon fiber, wire diameter 7J1m, strength 340kg/mrn
' Carbon fibers were used, and each resin impregnation tank was filled with a resin liquid containing 100 wt% of epoxy resin as a matrix resin and 10 wt% of calcium carbonate as a filler, and impregnated into the carbon fibers. As a different type of fiber, the glass fiber bundle (spun roving) was mixed in the entire axial carbon fiber reinforced layer 2 at 5%.
このようにして製造した引抜成形品１の強度は表１に示
す通りであった。従来の成形品に比較し優れていること
が理解されるであろう。The strength of the pultrusion molded product 1 thus produced was as shown in Table 1. It will be understood that this product is superior to conventional molded products.
表１ ねじり試験結果
比較例１：本発明と同じ寸法形状の正面角柱状のマンド
レルでオーバーワインディング
なし
比較例２：本発明と同じ寸法形状の正面角柱状のマンド
レルでオーバーワインディング
あり
第１１ｒ！４には１本発明に従って成形される、例えば
第３図に図示されるようなＬ字形状のロッド状の炭素繊
維強化複合樹脂引抜成形品ｌを製造する場合に使用され
るマンドレル２６と金型５２の一実施例が示される。マ
ンドレル２６は断面形状が円形をした円形部分２６ａか
ら、断面がＬ字形状とされる非円形部分２８ｂへと漸次
変形するように形成される。このとき、円形部分２６ａ
の周長と、非円形部分２６ｂの周長とは同じとされる。Table 1 Torsion test results Comparative example 1: No overwinding using a front prismatic mandrel with the same dimensions and shape as the present invention Comparative example 2: Overwinding using a front prismatic mandrel with the same dimensions and shape as the present invention 11th r! 4-1 A mandrel 26 and a mold used in manufacturing an L-shaped rod-shaped carbon fiber-reinforced composite resin pultrusion molded product l molded according to the present invention, for example, as shown in FIG. An example of 52 is shown. The mandrel 26 is formed so as to gradually deform from a circular portion 26a having a circular cross section to a non-circular portion 28b having an L-shaped cross section. At this time, the circular portion 26a
The circumference of the non-circular portion 26b is the same as that of the non-circular portion 26b.
マンドレル２６はその大半が、つまりオーバーワインダ
ー２４．３６．更には金型５２の直前に至るまでその断
面形状は円形とされ、軸方向炭素繊維強化樹脂層２及び
螺旋方向炭素繊維強化樹脂層４から成る繊維強化樹脂層
５０は該円形断面形状をしたマンドレルの円形部分２６
ａ上に形成される。Most of the mandrels 26 are overwinders 24.36. Furthermore, the cross-sectional shape is circular until just before the mold 52, and the fiber-reinforced resin layer 50 consisting of the axial carbon fiber-reinforced resin layer 2 and the helical carbon fiber-reinforced resin layer 4 is a mandrel having the circular cross-sectional shape. circular part 26 of
formed on a.
勿論、軸方向炭素繊維強化樹脂層２或いは螺旋方向炭素
繊維強化樹脂層のいずれか又は両方に上述したと同様の
異種の繊維が混入される。Of course, different types of fibers similar to those described above are mixed in either or both of the axial carbon fiber reinforced resin layer 2 and the helical carbon fiber reinforced resin layer.
次いで、このようにして円形断面マンドレル２６ａ上に
形成された炭素繊維強化樹脂層５ｏは、マンドレル２６
の非円形部分１本実施例ではＬ字形状部分２６ｂへと送
給される。該炭素繊維強化樹脂層５０は、第１２図に図
示されるように、適当な形状をしたガイド部材６０を使
用することによりマンドレル２６ｂの凹部に押付けられ
、従ってマンドレル２６ｂの外形状に倣った形状へと変
形される。金型５２は所望のＬ字形状の案内溝５２ａが
形成されており、マンドレル２６ｂからの樹脂層５０を
引入れ、所望形状に賦形する。Next, the carbon fiber reinforced resin layer 5o formed on the circular cross-section mandrel 26a in this way is transferred to the mandrel 26.
In this embodiment, the non-circular portion 26b is fed to the L-shaped portion 26b. As shown in FIG. 12, the carbon fiber reinforced resin layer 50 is pressed into the concave portion of the mandrel 26b by using a guide member 60 having an appropriate shape, so that the carbon fiber reinforced resin layer 50 has a shape that follows the outer shape of the mandrel 26b. transformed into. The mold 52 is formed with a desired L-shaped guide groove 52a, into which the resin layer 50 from the mandrel 26b is drawn and shaped into a desired shape.
このように本発明に従えば、マンドレル２６及び金型５
２を所望の形状に形成することにより、任意の例えば、
上記り形を始め、Ｈ形、■形、矩形等の所望の断面形状
をした非円形の炭素繊維強化複合樹脂引抜成形品ｌを連
続的に製造することができる。According to the present invention, the mandrel 26 and the mold 5
2 into a desired shape, any e.g.
Non-circular carbon fiber-reinforced composite resin pultrusion molded products 1 having desired cross-sectional shapes such as the above-mentioned shape, H-shape, ■-shape, rectangle, etc. can be continuously produced.
従来、例えば中空角材のような非円形断面の炭素繊維強
化複合樹脂引抜成形品を得るには、−旦外形が円形とさ
れる成形品を引抜いた後再度外形を矩形状に加工すると
いった工程が必要であり。Conventionally, in order to obtain a carbon fiber-reinforced composite resin pultruded product with a non-circular cross section, such as a hollow square lumber, a process of first pulling out a molded product with a circular outer shape and then processing the outer shape into a rectangular shape again is necessary. It's necessary.
その製造は極めて困難であり、角部の繊維が少なくなり
、繊維分布が不均一となるといった問題を有し良好な品
質のものを得ることが難しかった。Its production is extremely difficult, and there are problems such as fewer fibers at the corners and uneven fiber distribution, making it difficult to obtain products of good quality.
又、例えばり、Ｈ，Ｉ形等の非円形断面の繊維強化複合
樹脂引抜成形品を上述のようなオーバーワインディング
法にて得ることは不可能であった。Further, it has been impossible to obtain a fiber-reinforced composite resin pultruded product having a non-circular cross section, such as an H or I shape, by the overwinding method as described above.
本発明に従えば非円形成形品であっても角部における各
炭素繊維強化樹脂層は一様の厚さ及び−様の繊維分布を
持ち、円形成形品と同様の高強度を達成し得る。According to the present invention, even in a non-circular molded product, each carbon fiber reinforced resin layer at the corner has a uniform thickness and a -like fiber distribution, achieving high strength similar to that of a circular molded product. obtain.
本発明に従った円形断面の成形品を製造する場合には、
上記実施例にて使用したマンドレルの代りに所定の直径
を有したマンドレルを使用することにより同様の装置及
び製造方法にて製造し得る。When manufacturing a molded article with a circular cross section according to the present invention,
By using a mandrel having a predetermined diameter in place of the mandrel used in the above embodiment, it can be manufactured using the same apparatus and manufacturing method.
上記各実施例では異種の繊維は、軸方向炭素繊維強化樹
脂層２に混入されるものとして説明したが１本発明に従
えば、軸方向炭素繊維強化樹脂層のみならず螺旋方向炭
素繊維強化樹脂層に、又はいずれか一方に選択的に混入
することができ、同等の破断応力、剪断剛性を得ること
ができた。In each of the above embodiments, different types of fibers were explained as being mixed in the axial carbon fiber reinforced resin layer 2, but according to the present invention, not only the axial carbon fiber reinforced resin layer but also the helical carbon fiber reinforced resin layer It was possible to selectively mix it into the layer or either layer, and it was possible to obtain equivalent breaking stress and shear rigidity.
完」Ｌの」１釆
以上説明したように、本発明に従った炭素繊維強化複合
樹脂引抜成形品は軸方向及び横方向の強度が従来の成形
品に比較し飛躍的に向上したものとなり、又本発明によ
る製造方法によると斯る炭素繊維強化複合樹脂引抜成形
品が極めて簡単に且つ連続的に製造し得るという利点が
ある。As explained above, the carbon fiber reinforced composite resin pultrusion molded product according to the present invention has dramatically improved strength in the axial and lateral directions compared to conventional molded products, Further, the manufacturing method according to the present invention has the advantage that such a carbon fiber reinforced composite resin pultrusion molded product can be manufactured extremely easily and continuously.
第１図〜第７図は、本発明に係る炭素繊維強化複合樹脂
引抜成形品の実施例の断面図である。
第８図は、本発明に従って炭素繊維強化複合樹脂引抜成
形品を製造する際に使用する引抜成形機の一実施例の概
略説明図である。
第９図は、第１図及び第２図の炭素繊維強化複合樹脂引
抜成形品を製造する際に使用するマンドレル及び金型を
示す斜視図である。
第１０図は、第８図の装置にて製造される本発明に係る
炭素繊維強化複合樹脂引抜成形品の断面図である。
第１１図は、第３図の炭素繊維強化複合樹脂引抜成形品
を製造する際に使用するマンドレル及び金型を示す斜視
図である。
第１２図は、第３図の炭素繊維強化複合樹脂引抜成形品
を製造する際に使用するマンドレルに適合されるガイド
部材の斜視図である。
１：炭素繊維強化複合樹脂引抜成形品
２：軸方向炭素繊維強化樹脂層
４：螺旋方向炭素繊維強化樹脂層
２６：マンドレル
５２：金型
第１図 第２図
第４図 第５図1 to 7 are cross-sectional views of examples of the carbon fiber reinforced composite resin pultrusion molded product according to the present invention. FIG. 8 is a schematic explanatory diagram of an embodiment of a pultrusion molding machine used in manufacturing a carbon fiber reinforced composite resin pultrusion molded product according to the present invention. FIG. 9 is a perspective view showing a mandrel and a mold used in manufacturing the carbon fiber reinforced composite resin pultrusion molded product of FIGS. 1 and 2. FIG. FIG. 10 is a cross-sectional view of a carbon fiber-reinforced composite resin pultrusion molded product according to the present invention manufactured by the apparatus shown in FIG. 8. FIG. 11 is a perspective view showing a mandrel and a mold used in manufacturing the carbon fiber reinforced composite resin pultrusion molded product of FIG. 3. FIG. 12 is a perspective view of a guide member adapted to a mandrel used in manufacturing the carbon fiber reinforced composite resin pultrusion molded product of FIG. 3. 1: Carbon fiber reinforced composite resin pultrusion molded product 2: Axial carbon fiber reinforced resin layer 4: Spiral carbon fiber reinforced resin layer 26: Mandrel 52: Mold Fig. 1 Fig. 2 Fig. 4 Fig. 5
Claims (1)
繊維強化樹脂層と、炭素繊維を軸線に対し螺旋状に巻付
けることにより形成される螺旋方向炭素繊維強化樹脂層
とを有した炭素繊維強化複合樹脂引抜成形品であって、
前記軸方向炭素繊維樹脂層或いは螺旋方向炭素繊維強化
樹脂層のいずれか又は両方に炭素繊維とは異種の繊維を
１〜２０％含むことを特徴とする炭素繊維強化複合樹脂
引抜成形品。 ２）軸方向炭素繊維樹脂層と螺旋方向炭素繊維樹脂層と
は互い違いに複数層形成されて成る特許請求の範囲第１
項記載の炭素繊維強化複合樹脂引抜成形品。 ３）成形品の最内層は軸方向炭素繊維樹脂層である特許
請求の範囲第１項又は第２項記載の炭素繊維強化複合樹
脂引抜成形品。 ４）異種の繊維はガラス繊維束又はアラミド繊維束とさ
れる特許請求の範囲第１項〜第３項のいずれかの項に記
載の炭素繊維強化複合樹脂引抜成形品。 ５）異種の繊維は、単繊維が乱配向した毛糸状の繊維束
である特許請求の範囲第１項〜第４項のいずれかの項に
記載の炭素繊維強化複合樹脂引抜成形品。 ６）軸線方向に対し垂直方向にとつた横断面形状は、円
形断面とされる特許請求の範囲第１項〜第５項のいずれ
かの項に記載の炭素繊維強化複合樹脂引抜成形品。 ７）軸線方向に対し垂直方向にとつた横断面形状は、矩
形、Ｌ形、Ｈ形、Ｉ形等の非円形断面とされる特許請求
の範囲第１項〜第５項のいずれかの項に記載の炭素繊維
強化複合樹脂引抜成形品。 ８）（ａ）円形断面を有した細長のマンドレルを用意す
る工程； （ｂ）前記マンドレルの上に樹脂含浸炭素繊維を軸方向
に配置するか又は螺旋方向に巻付けて、所定の肉厚を有
した第１の炭素繊維強化樹脂層を形成する工程； （ｃ）前記第１の炭素繊維強化樹脂層を固化するに先立
つて該炭素繊維強化樹脂層の上に樹脂含浸炭素繊維を前
記第１の炭素繊維強化樹脂層とは異なる方向に配列する
ことにより第２の炭素繊維強化樹脂層を形成する工程； （ｄ）必要に応じて、前記（ｂ）、（ｃ）工程を所望回
数繰り返し行ない、軸方向炭素繊維強化樹脂層及び螺旋
方向炭素繊維強化樹脂層から成る未硬化炭素繊維強化樹
脂層積層体を形成する工程（ｅ）前記軸方向炭素繊維強
化樹脂層或いは螺旋方向炭素繊維強化樹脂層のいずれか
又は両方に炭素繊維とは異種の繊維が１〜２０％含まれ
ていること； （ｆ）前記積層体を金型へと引込んで所定の寸法形状に
賦形する工程； （ｇ）次いで、前記炭素繊維強化樹脂層積層体を固化す
る工程； を有することを特徴とする円形断面を有した炭素繊維強
化複合樹脂引抜成形品の製造法。 ９）第１の炭素繊維強化樹脂層は軸方向炭素繊維強化樹
脂層である特許請求の範囲第８項記載の製造法。 １０）異種の繊維は、ガラス繊維束又はアラミド繊維束
とされる特許請求の範囲第８項又は第９項記載の製造法
。 １１）異種の繊維は、単繊維が乱配向した毛糸状の繊維
束である特許請求の範囲第８項〜第１０項のいずれかの
項に記載の製造法。 １２）（ａ）所定長さの円形断面部分と、該円形断面部
分に連接し、所定の断面形状へと漸次連続的に変化する
非円形断面部分とを有した細長のマンドレルを用意する
工程； （ｂ）前記マンドレルの円形断面部分の上に樹脂含浸炭
素繊維を軸方向に配置するか又は螺旋方向に巻付けて、
所定の肉厚を有した第１の炭素繊維強化樹脂層を形成す
る工程； （ｃ）前記第１の炭素繊維強化樹脂層を固化するに先立
つて該炭素繊維強化樹脂層の上に樹脂含浸炭素繊維を前
記第１の炭素繊維強化樹脂層とは異なる方向に配列する
ことにより第２の炭素繊維強化樹脂層を形成する工程； （ｄ）必要に応じて、前記（ｂ）、（ｃ）工程を所望回
数繰り返し行なつた後、前記軸方向炭素繊維強化樹脂層
及び螺旋方向炭素繊維強化樹脂層から成る未硬化炭素繊
維強化樹脂層積層体を形成する工程； （ｅ）前記軸方向炭素繊維強化樹脂層或いは螺旋方向炭
素繊維強化樹脂層のいずれか又は両方に炭素繊維とは異
種の繊維が１〜２０％含まれていること； （ｆ）前記積層体を前記マンドレルの非円形断面部分に
導き、次いで金型へと引込んで所定形状に賦形する工程
； （ｇ）次いで、前記炭素繊維強化樹脂層積層体を固化す
る工程； を有することを特徴とする非円形断面を有した炭素繊維
強化複合樹脂引抜成形品の製造法。 １３）第１の炭素繊維強化樹脂層は軸方向炭素繊維強化
樹脂層である特許請求の範囲第１２項記載の製造法。 １４）異種の繊維は、ガラス繊維束又はアラミド繊維束
とされる特許請求の範囲第１２項又は第１３項記載の製
造法。 １５）異種の繊維は、単繊維が乱配向した毛糸状の繊維
束である特許請求の範囲第１２項〜第１４項のいずれか
の項に記載の製造法。[Claims] 1) An axial carbon fiber-reinforced resin layer formed by aligning carbon fibers in the axial direction, and a helical carbon fiber reinforcement formed by winding the carbon fibers in a spiral around the axis. A carbon fiber reinforced composite resin pultrusion molded product having a resin layer,
A carbon fiber-reinforced composite resin pultruded product characterized in that either or both of the axial carbon fiber resin layer and the helical carbon fiber reinforced resin layer contain 1 to 20% of fibers of a different type than carbon fibers. 2) Claim 1 in which the axial carbon fiber resin layer and the helical carbon fiber resin layer are formed in plural layers alternately.
The carbon fiber reinforced composite resin pultrusion molded product described in . 3) The carbon fiber reinforced composite resin pultrusion molded product according to claim 1 or 2, wherein the innermost layer of the molded product is an axial carbon fiber resin layer. 4) The carbon fiber reinforced composite resin pultruded product according to any one of claims 1 to 3, wherein the different types of fibers are glass fiber bundles or aramid fiber bundles. 5) The carbon fiber reinforced composite resin pultrusion molded product according to any one of claims 1 to 4, wherein the different types of fibers are yarn-like fiber bundles in which single fibers are randomly oriented. 6) The carbon fiber-reinforced composite resin pultruded product according to any one of claims 1 to 5, wherein the cross-sectional shape taken in the direction perpendicular to the axial direction is a circular cross-section. 7) Any one of claims 1 to 5, wherein the cross-sectional shape taken in a direction perpendicular to the axial direction is a non-circular cross-section such as a rectangle, L-shape, H-shape, I-shape, etc. The carbon fiber reinforced composite resin pultrusion molded product described in . 8) (a) Providing an elongated mandrel with a circular cross section; (b) Arranging resin-impregnated carbon fibers on the mandrel in the axial direction or winding them in a helical direction to obtain a predetermined wall thickness; (c) prior to solidifying the first carbon fiber reinforced resin layer, forming a resin-impregnated carbon fiber on the carbon fiber reinforced resin layer; forming a second carbon fiber reinforced resin layer by arranging the carbon fiber reinforced resin layer in a direction different from that of the carbon fiber reinforced resin layer; (d) repeating the steps (b) and (c) a desired number of times as necessary; , Step (e) of forming an uncured carbon fiber reinforced resin layer laminate comprising an axial carbon fiber reinforced resin layer and a helical carbon fiber reinforced resin layer; (e) the axial carbon fiber reinforced resin layer or the helical carbon fiber reinforced resin layer; (f) A step of drawing the laminate into a mold and shaping it into a predetermined size and shape; (g) Next, a step of solidifying the carbon fiber reinforced resin layer laminate; A method for manufacturing a carbon fiber reinforced composite resin pultrusion molded product having a circular cross section. 9) The manufacturing method according to claim 8, wherein the first carbon fiber reinforced resin layer is an axial carbon fiber reinforced resin layer. 10) The manufacturing method according to claim 8 or 9, wherein the different types of fibers are glass fiber bundles or aramid fiber bundles. 11) The manufacturing method according to any one of claims 8 to 10, wherein the different types of fibers are yarn-like fiber bundles in which single fibers are randomly oriented. 12) (a) providing an elongated mandrel having a circular cross-sectional portion of a predetermined length and a non-circular cross-sectional portion connected to the circular cross-sectional portion and gradually and continuously changing to the predetermined cross-sectional shape; (b) axially disposing or helically winding resin-impregnated carbon fibers on the circular cross-section portion of the mandrel;
Step of forming a first carbon fiber reinforced resin layer having a predetermined thickness; (c) Before solidifying the first carbon fiber reinforced resin layer, resin-impregnated carbon is formed on the carbon fiber reinforced resin layer. forming a second carbon fiber reinforced resin layer by arranging fibers in a direction different from that of the first carbon fiber reinforced resin layer; (d) as necessary, the steps (b) and (c); After repeating the above a desired number of times, forming an uncured carbon fiber reinforced resin layer laminate consisting of the axial carbon fiber reinforced resin layer and the helical carbon fiber reinforced resin layer; (e) the axial carbon fiber reinforced Either or both of the resin layer and the helical carbon fiber reinforced resin layer contain 1 to 20% of fibers of a different type than carbon fibers; (f) guiding the laminate to a non-circular cross-sectional portion of the mandrel; , then drawing it into a mold and shaping it into a predetermined shape; (g) then solidifying the carbon fiber reinforced resin layer laminate; carbon fiber reinforced with a non-circular cross section. A method for manufacturing composite resin pultruded products. 13) The manufacturing method according to claim 12, wherein the first carbon fiber reinforced resin layer is an axial carbon fiber reinforced resin layer. 14) The manufacturing method according to claim 12 or 13, wherein the different types of fibers are glass fiber bundles or aramid fiber bundles. 15) The manufacturing method according to any one of claims 12 to 14, wherein the different types of fibers are yarn-like fiber bundles in which single fibers are randomly oriented.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62323189A JPH01163045A (en) | 1987-12-21 | 1987-12-21 | Pultrusion product made of carbon fiber reinforced composite resin and its production |
| KR1019880011922A KR890005310A (en) | 1987-09-17 | 1988-09-15 | Fiber-reinforced composite resin molded product and its manufacturing method |
| US07/246,127 US5122417A (en) | 1987-09-17 | 1988-09-16 | Fiber-reinforced composite resin pultrusion products and method of manufacturing the same |
| DE19883851023 DE3851023T2 (en) | 1987-09-17 | 1988-09-16 | Carbon fiber reinforced resin pultrusion articles and process for their manufacture. |
| EP19880308572 EP0308237B1 (en) | 1987-09-17 | 1988-09-16 | Carbon fibre-reinforced composite resin pultrusion products and method for manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62323189A JPH01163045A (en) | 1987-12-21 | 1987-12-21 | Pultrusion product made of carbon fiber reinforced composite resin and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01163045A true JPH01163045A (en) | 1989-06-27 |
Family
ID=18152060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62323189A Pending JPH01163045A (en) | 1987-09-17 | 1987-12-21 | Pultrusion product made of carbon fiber reinforced composite resin and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01163045A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01214427A (en) * | 1988-02-22 | 1989-08-28 | Kurabe:Kk | Preparation of fiber-reinforced resin continuum |
| JP2008506551A (en) * | 2004-07-15 | 2008-03-06 | エプシロン コンポジット | Composite tube obtained by pultrusion and manufacturing method thereof |
-
1987
- 1987-12-21 JP JP62323189A patent/JPH01163045A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01214427A (en) * | 1988-02-22 | 1989-08-28 | Kurabe:Kk | Preparation of fiber-reinforced resin continuum |
| JP2008506551A (en) * | 2004-07-15 | 2008-03-06 | エプシロン コンポジット | Composite tube obtained by pultrusion and manufacturing method thereof |
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